We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Donate now and help us to keep this site free and ad-free!
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:40  
clear_day Transit: 11:47  
SunsetSet: 15:53 south
sleep NighttimeWhat's Visible Now?
All Constellations » Dorado » 

η1 Doradus (eta1 Doradus)

Altitude: -42.4°   Azimuth: 147.1°   Direction: South-South-East

η1 Doradus is a hypergiant star in the constellation of Dorado.

η1 Doradus visual magnitude is 5.71. Because of its reltive faintness, η1 Doradus should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about η1 Doradus:


η1 Doradus (eta1 Doradus) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -42.4°
Azimuth: 147.1°
Direction: South-South-East

Celestial coordinates and finder chart of η1 Doradus

η1 Doradus is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of η1 Doradus are provided in the following table:

06h 06m 09s
-66° 02’ 22”

The simplified sky map below shows the position of η1 Doradus in the sky:

Finder chart η1 Doradus (eta1 Doradus) star
Simplified finder chart for η1 Doradus (eta1 Doradus).

Visibility of η1 Doradus from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

η1 Doradus (eta1 Doradus) is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of η1 Doradus

The image below is a photograph of η1 Doradus from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of η1 Doradus is 0.017 arcsec per year in Right Ascension and 0.027 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of η1 Doradus (eta1 Doradus) star
DSS2 image of η1 Doradus. The red arrow shows the motion of η1 Doradus during the next 10000 years (2.83 arcmin in Right Ascension and 4.50 arcmin in declination);

Distance of η1 Doradus from the Sun and relative movement

η1 Doradus is distant 331.98 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

101.83 pc
331.98 ly
18 km/s
0.017 arcsec/year
0.027 arcsec/year

Spectral properties of η1 Doradus

η1 Doradus belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.


The red dot in the diagram below shows where η1 Doradus is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of η1 Doradus. Attribution: Richard Powell / CC BY-SA

Alternative designations of η1 Doradus

η1 Doradus
(eta1 Doradus)